The vote, which was approved by 524 votes in favour, came after a sometimes heated debate in which lawmakers repeatedly questioned Prime Minister David Cameron and the government over the duration and precise aims of the air campaign.
Also on Friday, Denmark announced it would send seven F-16 fighter jets to combat the ISIS in Iraq.
In addition, Denmark will send troops to northern Iraq as the United States has asked Denmark to contribute to the training of Iraqi and Kurdish security forces.
This week also saw the Netherlands and Belgium respond to U.S. President Barack Obama’s intensified efforts to rally global support for anti-IS fight.
The Netherlands will deploy six F-16 fighter aircraft that can carry out military actions in Iraq. The aircraft will be deployed at an undecided site outside Iraq, probably in Jordan, said Defense Minister Jeanine Hennis-Plasschaert on Wednesday.
Belgium’s plan to send fighter jets to combat ISIS militants in Iraq cleared its parliament on Friday.
On Thursday, France went a step further to announce that it would probably join the coalition bombing ISIS targets in Syria.
Speaking over RTL radio, French Defense Minister Jean-Yves Le Drian said France was mulling the possibility of joining the military offensive in Syria.
“We already have an important task in Iraq and we will see in the coming days how the situation progresses,” the minister added.